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All Patents in class 250/227.11
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	4,441,021	Apr. 03, 1984	T.P. Becker, C.B. Stout, D.D. Grover, J.A. Thompson, G.E. Olson	Luminosity Probe for Diesel Engine Timing Apparatus
	4,767,175	Aug. 30, 1988	H. Gähr, C. Böhner, G. Wohlhaupter	Rotary device for transmitting light signals including annular photoelectric transducers

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